Christian Lawson-Perfect
Member of the e-learning unit in Newcastle University's School of Mathematics and Statistics.
Lead developer of Numbas.
I'm happy to answer any questions - email me.
Christian's activity
Christian Lawson-Perfect on Algebra vocabulary 8 years, 5 months ago
Gave some feedback: Has some problems
Christian Lawson-Perfect on Algebra vocabulary 8 years, 5 months ago
Saved a checkpoint:
I agree with Lauren - only offer a few choices for each part.
I think we talked about this question a while ago. You could have the statements and their associated words in a list, and only pick three or four each time the question runs. It looks very forbidding at the moment.
The sentences might work better as fill-in-the-blanks.
I don't like how the choices are in a different order for each part: it makes it harder to see what the options are, and to find the word I have in mind.
In some of your "for example" sentences, you use the word in question!
Christian Lawson-Perfect on Completing the square 8 years, 5 months ago
Gave some feedback: Has some problems
Christian Lawson-Perfect on Completing the square 8 years, 5 months ago
Saved a checkpoint:
Why are there three of each type of equation? Unless there's some kind of development, you should have one of each instance; the student can retry the question to get more examples.
The marking doesn't check that the student has put the expressions in the desired form. Ask Elliott about pattern-matching.
You could scale things so that only integers are used in the answer to part d. (I got $0.5 \pm \sqrt{50.25}$)
Christian Lawson-Perfect on Rationalising the denominator - surds 8 years, 5 months ago
Gave some feedback: Ready to use
Christian Lawson-Perfect on Rationalising the denominator - surds 8 years, 5 months ago
Saved a checkpoint:
Good question!
It seems you didn't know about display mode maths while writing the advice: enclose maths in
\[and\]instead of dollar signs to place it at the centre of its own line with a good margin.
Christian Lawson-Perfect on Dividing a polynomial with remainders, using the remainder theorem 8 years, 5 months ago
Gave some feedback: Ready to use
Christian Lawson-Perfect on Dividing a polynomial with remainders, using the remainder theorem 8 years, 5 months ago
Saved a checkpoint:
Looks good!
Christian Lawson-Perfect on Drag points to given Cartesian coordinates 8 years, 5 months ago
Gave some feedback: Ready to use
Christian Lawson-Perfect on Drag points to given Cartesian coordinates 8 years, 5 months ago
Saved a checkpoint:
I've tidied up the advice, but this is a good question!